// Copyright 2024 The Google Research Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef ONLINE_BELIEF_PROPAGATION_OVERLAP_EVALUATE_H_
#define ONLINE_BELIEF_PROPAGATION_OVERLAP_EVALUATE_H_

#include "evaluate.h"

// Calculates the fraction of vertices on which the 'clusters' and
// 'ground_truth_communities' vectors agree.
class OverlapEvaluate : public Evaluate<const std::vector<int>&> {
 public:
  // The two input vectors should have the same length and should not be empty.
  double operator()(const std::vector<int>& clusters,
                    const std::vector<int>& ground_truth_communities) override;
};

#endif  // ONLINE_BELIEF_PROPAGATION_OVERLAP_EVALUATE_H_
